Final answer:
There are approximately 30.48 centimeters in a foot, making option 3) 30.5 centimeters the closest approximation provided for the conversion.
Step-by-step explanation:
The question you've asked is related to the conversion of units of measurement, specifically converting feet to centimeters. In the metric system, the centimeter is a unit of length. To answer your question, there are approximately 30.48 centimeters in a foot. If you have a measurement in feet and need to know how many centimeters it is, you simply multiply the number of feet by 30.48. For example, to convert 2 feet into centimeters, you would calculate 2 × 30.48 to get 60.96 centimeters.
So, among the options provided, 3) 30.5 centimeters is the closest approximation to the number of centimeters in a foot.